Fine wines, dirty secrets. It's summer in Bordeaux. There's a heat wave, the vineyards are suffering, vintners are on edge, and wine expert Benjamin Cooker's daughter is visiting. A tragic car accident draws the winemaker detective and his assistant, Virgile, into a case where the stakes are very personal. Together they uncover the dirty secrets hiding behind some of Bordeaux's finest grand cru classé wines from Margaux.